用SPARC星系自转曲线数据检验玻色-爱因斯坦凝聚体暗物质模型
Testing Bose-Einstein Condensate dark matter models with the SPARC galactic rotation curves data
摘要：
宇宙的基本组成部分之一，暗物质的性质仍然未知。一个有趣的可能性是，暗物质可能以自相互作用的玻色-爱因斯坦凝聚体（BEC）的形式存在。在这个模型中，暗物质的基本性质仅由两个参数决定，即粒子的质量和散射长度。本文利用最近公布的Spitzer Photomery \& Accurate Rotation Curves（BEC）观测数据中的173个星系，研究了BEC暗物质模型中具有二次自相互作用的星系自转曲线的性质.我们用遗传算法拟合了慢转BEC模型中转动曲线的理论预测值与实际观测数据。我们提供了一个广泛的旋转曲线的图形集，我们获得的BEC暗物质晕（中心密度，角速度和静态半径）的相关天体物理参数的估计。还得到了暗物质的密度分布。结果表明，BEC模型能很好地描述地震资料。凝聚态暗物质的存在也可能为核心/尖点问题提供解决方案。
英文摘要：
The nature of one of the fundamental components of the Universe, the dark matter, is still unknown. One interesting possibility is that dark matter could exist in the form of a self-interacting Bose-Einstein Condensate (BEC). The fundamental properties of the dark matter in this model are determined by two parameters only, the mass and the scattering length of the particle. In the present study we investigate the properties of the galactic rotation curves in the BEC dark matter model, with quadratic self-interaction, by using 173 galaxies from the recently published Spitzer Photomery \& Accurate Rotation Curves (SPARC) data. We fit the theoretical predictions of the rotation curves in the slowly rotating BEC models with the SPARC data by using genetic algorithms. We provide an extensive set of figures of the rotation curves, and we obtain estimates of the relevant astrophysical parameters of the BEC dark matter halos (central density, angular velocity and static radius). The density profiles of the dark matter distribution are also obtained. It turns out that the BEC model gives a good description of the SPARC data. The presence of the condensate dark matter could also provide a solution for the core/cusp problem.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
